diff options
| author | Warner Losh <imp@bsdimp.com> | 2022-01-08 17:14:12 -0700 |
|---|---|---|
| committer | Warner Losh <imp@bsdimp.com> | 2022-01-28 15:52:39 -0700 |
| commit | 6e0bc06e210cbd25006c3a39e9a8325784d0be78 (patch) | |
| tree | ca1fede25cafd389420c61d5a3fa975c7a4c9077 /bsd-user/host | |
| parent | e32a63010ff221f7e161a592972076d2976c5eae (diff) | |
bsd-user/host/arm/host-signal.h: Implement host_signal_*
Implement host_signal_pc, host_signal_set_pc and host_signal_write for
arm.
Signed-off-by: Kyle Evans <kevans@freebsd.org>
Signed-off-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'bsd-user/host')
| -rw-r--r-- | bsd-user/host/arm/host-signal.h | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/bsd-user/host/arm/host-signal.h b/bsd-user/host/arm/host-signal.h new file mode 100644 index 0000000000..56679bd699 --- /dev/null +++ b/bsd-user/host/arm/host-signal.h @@ -0,0 +1,35 @@ +/* + * host-signal.h: signal info dependent on the host architecture + * + * Copyright (c) 2021 Warner Losh + * + * SPDX-License-Identifier: GPL-2.0-or-later + */ + +#ifndef ARM_HOST_SIGNAL_H +#define ARM_HOST_SIGNAL_H + +#include <sys/ucontext.h> + +static inline uintptr_t host_signal_pc(ucontext_t *uc) +{ + return uc->uc_mcontext.__gregs[_REG_PC]; +} + +static inline void host_signal_set_pc(ucontext_t *uc, uintptr_t pc) +{ + uc->uc_mcontext.__gregs[_REG_PC] = pc; +} + +static inline bool host_signal_write(siginfo_t *info, ucontext_t *uc) +{ + /* + * In the FSR, bit 11 is WnR. FreeBSD returns this as part of the + * si_info.si_trapno. + */ + uint32_t fsr = info->si_trapno; + + return extract32(fsr, 11, 1); +} + +#endif |